Mathematics for IGCSE & O level - Equations (Section 5 - No. 15)
Which of the following is a key characteristic of a quadratic equation that can be solved by factorization?
Has a complex root.
Can be simplified by collecting terms.
Can be expressed as a product of linear factors.
It has no real roots.
Shpjegimi
The ability to factor the equation is fundamental to solve it that way.